The article explores the issue of teacher autonomy in relation to its potential for freedom or control. It examines the concept of empowerment as applied to education, arguing that, although it is traditionally cast as a means of achieving autonomy, an alternative approach sees empowerment as part of the disciplinary apparatus of late modern governance. In exploring these issues, the article covers ideas such as critical education, the reflective practitioner and personal effectiveness from the view of teacher autonomy as emancipatory; and self-surveillance, disciplinary regimes and pedagogic identity from the perspective of control. The article concludes that the appeal of teacher autonomy to the profession must be tempered by the recognition that it has the ability to both liberate and deceive. (Contains 2 notes.)